Polarization sensitivity of x-ray photocathodes in the 60-200eV band

George W. Fraser; M. D. Pain; James F. Pearson; John Ernest Lees; C. R. Binns; Ping-Shine Shaw; Judith R. Fleischman

doi:10.1117/12.50579

1 November 1991 Polarization sensitivity of x-ray photocathodes in the 60-200eV band

George W. Fraser, M. D. Pain, James F. Pearson, John Ernest Lees, C. R. Binns, Ping-Shine Shaw, Judith R. Fleischman

Proceedings Volume 1548, Production and Analysis of Polarized X Rays; (1991) https://doi.org/10.1117/12.50579
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

In this paper, we briefly describe measurements of the 60 - 200 eV photoemission from Caesium Iodide, Gold, and Aluminum photocathodes made on beamline 6.1 of the SERC Daresbury synchrotron radiation source (SRS). Measurements were made near grazing incidence using both s- (electric vector perpendicular to the plane of incidence) and p- polarized (electric vector parallel to the plane of incidence) radiation. Our data supports the existence of an 'x-ray vectorial effect'--a pronounced linear polarization dependence of the photoyield--observed in earlier experiments at Leicester and Columbia Universities and elsewhere. For CsI, novel measurements are also reported of: radiation damage and annealing, and the temperature dependence of the photoyield.

Citation Download Citation

George W. Fraser, M. D. Pain, James F. Pearson, John Ernest Lees, C. R. Binns, Ping-Shine Shaw, and Judith R. Fleischman "Polarization sensitivity of x-ray photocathodes in the 60-200eV band", Proc. SPIE 1548, Production and Analysis of Polarized X Rays, (1 November 1991); https://doi.org/10.1117/12.50579

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